參數(shù)資料
型號: NT6881
廠商: Electronic Theatre Controls, Inc.
英文描述: USB Keyboard Micro-Controller
中文描述: USB鍵盤微控制器
文件頁數(shù): 5/23頁
文件大?。?/td> 785K
代理商: NT6881
NT6881
5
2.Instruction Set List
Instruction Code
Meaning
Operation
ADC
Add with carry
A + M + C
A
C
AND
Logical AND
A
M
A
ASL
Shift left one bit
C
M7
M0
0
BCC
Branch if carry clear
Branch on C
0
BCS
Branch if carry set
Branch on C
1
BEQ
Branch if equal to zero
Branch on Z
1
BIT
Bit test
A
M
M7
N
M6
V
BMI
Branch if minus
Branch on N
1
BNE
Branch if not equal to zero
Branch on Z
0
BPL
Branch if plus
Branch on N
0
BRK
Break
Forced interrupt PC + 2
PC
BVC
Branch if overflow clear
Branch on V
0
BVS
Branch if overflow set
Branch on V
1
CLC
Clear carry
0
C
CLD
Clear decimal mode
0
D
CLI
Clear interrupt disable bit
0
I
CLV
Clear overflow
0
V
CMP
Compare accumulator to memory
A
M
CPX
Compare with index register X
X
M
CPY
Compare with index register Y
Y
M
DEC
Decrement memory by one
M
1
M
DEX
Decrement index X by one
X
1
X
DEY
Decrement index Y by one
Y
1
Y
EOR
Logical exclusive-OR
A
M
A
INC
Increment memory by one
M + 1
M
INX
Increment index X by one
X + 1
X
INY
Increment index Y by one
Y + 1
Y
JMP
Jump to new location
(PC + 1)
PCL
(PC + 2)
PCH
JSR
Jump to subroutine
PC + 2
(PC + 1)
PCL
(PC + 2)
PCH
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